bdk wrote:
When something is listed as part of a "collection," what does that really mean?
It means that you cannot remember where it came from and are therefore unable to properly credit the copyright holder.
Back when promotional images were freely distributed by aircraft builders and others and people amassed huge collections of these, you would get journalists going to one of these collections first as it was an easy way to find photos for use in an article. Through such occasions, the collections became mini-photo archives and it usually led to a credit, even though the photo was originally taken by someone else. Over time, these collections became historic archives in their own right and sometimes they hold more images than the official archive at the manufacturer does for a specific type. It doesn't change the basics of copyright though.
I agree, use at your own risk and be sure to do your own research about the origins of an image.
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